1/*
2* Copyright (c) 2014 - 2016, The Linux Foundation. All rights reserved.
3*
4* Redistribution and use in source and binary forms, with or without modification, are permitted
5* provided that the following conditions are met:
6*    * Redistributions of source code must retain the above copyright notice, this list of
7*      conditions and the following disclaimer.
8*    * Redistributions in binary form must reproduce the above copyright notice, this list of
9*      conditions and the following disclaimer in the documentation and/or other materials provided
10*      with the distribution.
11*    * Neither the name of The Linux Foundation nor the names of its contributors may be used to
12*      endorse or promote products derived from this software without specific prior written
13*      permission.
14*
15* THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
16* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
17* NON-INFRINGEMENT ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
18* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
19* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
20* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
21* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
22* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
23*/
24
25#ifndef __HWC_SESSION_H__
26#define __HWC_SESSION_H__
27
28#include <hardware/hwcomposer.h>
29#include <core/core_interface.h>
30#include <utils/locker.h>
31
32#include "hwc_display_primary.h"
33#include "hwc_display_external.h"
34#include "hwc_display_virtual.h"
35#include "hwc_color_manager.h"
36
37namespace sdm {
38
39class HWCSession : hwc_composer_device_1_t, public qClient::BnQClient {
40 public:
41  struct HWCModuleMethods : public hw_module_methods_t {
42    HWCModuleMethods() {
43      hw_module_methods_t::open = HWCSession::Open;
44    }
45  };
46
47  explicit HWCSession(const hw_module_t *module);
48  int Init();
49  int Deinit();
50
51 private:
52  static const int kExternalConnectionTimeoutMs = 500;
53  static const int kPartialUpdateControlTimeoutMs = 100;
54
55  // hwc methods
56  static int Open(const hw_module_t *module, const char* name, hw_device_t **device);
57  static int Close(hw_device_t *device);
58  static int Prepare(hwc_composer_device_1 *device, size_t num_displays,
59                     hwc_display_contents_1_t **displays);
60  static int Set(hwc_composer_device_1 *device, size_t num_displays,
61                 hwc_display_contents_1_t **displays);
62  static int EventControl(hwc_composer_device_1 *device, int disp, int event, int enable);
63  static int SetPowerMode(hwc_composer_device_1 *device, int disp, int mode);
64  static int Query(hwc_composer_device_1 *device, int param, int *value);
65  static void RegisterProcs(hwc_composer_device_1 *device, hwc_procs_t const *procs);
66  static void Dump(hwc_composer_device_1 *device, char *buffer, int length);
67  // These config functions always return FB params, the actual display params may differ.
68  static int GetDisplayConfigs(hwc_composer_device_1 *device, int disp, uint32_t *configs,
69                               size_t *numConfigs);
70  static int GetDisplayAttributes(hwc_composer_device_1 *device, int disp, uint32_t config,
71                                  const uint32_t *display_attributes, int32_t *values);
72  static int GetActiveConfig(hwc_composer_device_1 *device, int disp);
73  static int SetActiveConfig(hwc_composer_device_1 *device, int disp, int index);
74  static int SetCursorPositionAsync(hwc_composer_device_1 *device, int disp, int x, int y);
75  static void CloseAcquireFds(hwc_display_contents_1_t *content_list);
76  bool IsDisplayYUV(int disp);
77
78  // Uevent thread
79  static void* HWCUeventThread(void *context);
80  void* HWCUeventThreadHandler();
81  int GetEventValue(const char *uevent_data, int length, const char *event_info);
82  int HotPlugHandler(bool connected);
83  void ResetPanel();
84  int ConnectDisplay(int disp, hwc_display_contents_1_t *content_list);
85  int DisconnectDisplay(int disp);
86  void HandleSecureDisplaySession(hwc_display_contents_1_t **displays);
87  int GetVsyncPeriod(int disp);
88
89  // QClient methods
90  virtual android::status_t notifyCallback(uint32_t command, const android::Parcel *input_parcel,
91                                           android::Parcel *output_parcel);
92  void DynamicDebug(const android::Parcel *input_parcel);
93  void SetFrameDumpConfig(const android::Parcel *input_parcel);
94  android::status_t SetMaxMixerStages(const android::Parcel *input_parcel);
95  android::status_t SetDisplayMode(const android::Parcel *input_parcel);
96  android::status_t SetSecondaryDisplayStatus(const android::Parcel *input_parcel,
97                                              android::Parcel *output_parcel);
98  android::status_t ToggleScreenUpdates(const android::Parcel *input_parcel,
99                                        android::Parcel *output_parcel);
100  android::status_t ConfigureRefreshRate(const android::Parcel *input_parcel);
101  android::status_t QdcmCMDHandler(const android::Parcel *input_parcel,
102                                   android::Parcel *output_parcel);
103  android::status_t ControlPartialUpdate(const android::Parcel *input_parcel, android::Parcel *out);
104  android::status_t OnMinHdcpEncryptionLevelChange(const android::Parcel *input_parcel,
105                                                   android::Parcel *output_parcel);
106  android::status_t SetPanelBrightness(const android::Parcel *input_parcel,
107                                       android::Parcel *output_parcel);
108  android::status_t GetPanelBrightness(const android::Parcel *input_parcel,
109                                       android::Parcel *output_parcel);
110  // These functions return the actual display config info as opposed to FB
111  android::status_t HandleSetActiveDisplayConfig(const android::Parcel *input_parcel,
112                                                 android::Parcel *output_parcel);
113  android::status_t HandleGetActiveDisplayConfig(const android::Parcel *input_parcel,
114                                                 android::Parcel *output_parcel);
115  android::status_t HandleGetDisplayConfigCount(const android::Parcel *input_parcel,
116                                                android::Parcel *output_parcel);
117  android::status_t HandleGetDisplayAttributesForConfig(const android::Parcel *input_parcel,
118                                                        android::Parcel *output_parcel);
119  android::status_t GetVisibleDisplayRect(const android::Parcel *input_parcel,
120                                          android::Parcel *output_parcel);
121
122  android::status_t SetDynamicBWForCamera(const android::Parcel *input_parcel,
123                                          android::Parcel *output_parcel);
124  android::status_t GetBWTransactionStatus(const android::Parcel *input_parcel,
125                                          android::Parcel *output_parcel);
126  android::status_t SetMixerResolution(const android::Parcel *input_parcel);
127
128  static Locker locker_;
129  CoreInterface *core_intf_ = NULL;
130  hwc_procs_t hwc_procs_default_;
131  hwc_procs_t const *hwc_procs_ = &hwc_procs_default_;
132  HWCDisplay *hwc_display_[HWC_NUM_DISPLAY_TYPES] = { NULL };
133  pthread_t uevent_thread_;
134  bool uevent_thread_exit_ = false;
135  const char *uevent_thread_name_ = "HWC_UeventThread";
136  HWCBufferAllocator buffer_allocator_;
137  HWCBufferSyncHandler buffer_sync_handler_;
138  HWCColorManager *color_mgr_ = NULL;
139  bool reset_panel_ = false;
140  bool secure_display_active_ = false;
141  bool external_pending_connect_ = false;
142  bool new_bw_mode_ = false;
143  bool need_invalidate_ = false;
144  int bw_mode_release_fd_ = -1;
145  qService::QService *qservice_ = NULL;
146  bool is_hdmi_primary_ = false;
147  bool is_hdmi_yuv_ = false;
148};
149
150}  // namespace sdm
151
152#endif  // __HWC_SESSION_H__
153
154